Nano Archive

Modeling the thermodynamics of the interaction of nanoparticles with cell membranes

Ginzburg, Valedy V. and Balijepailli, Sudhakar (2007) Modeling the thermodynamics of the interaction of nanoparticles with cell membranes. NANO LETTERS, 7 (12). pp. 3716-3722.

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Interactions between nanoparticles and cell membranes may play a crucial role in determining the cytotoxicity of nanoparticles as well as their potential application as drug delivery vehicles or therapeutic agents. It has been shown that such interactions are often determined not by biochemical but by physicochemical factors (e.g., nanoparticle size, hydrophobicity, and surface charge density). Here, we propose a mesoscale thermodynamic model describing the transitions in membrane morphology observed after exposure to various types of nanoparticles. Our simulations demonstrate under which conditions (determined by particle size and hydrophilic/hydrophobic interactions) the particles can adsorb into the membrane or compromise the membrane integrity to result in the formation of nanosized holes. The model could be refined to include a more accurate description of various phospholipid membranes, and its results could be applied in the design of specific nanoparticles for various biomedical applications.

Item Type:Article
Subjects:Physical Science > Nano objects
Biomedical Science > Nanobiotechnology
Biomedical Science > Nanomedicine
ID Code:2635
Deposited By:Anuj Seth
Deposited On:09 Jan 2009 13:51
Last Modified:20 Jan 2009 11:23

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